E95i - 8…c6 9.Rb1 - King’s Indian (1952)

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E95i —
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1 c6 9.Rb1
Les coups candidats
9…a5 — 36.8% (120 parties)
Ambassadeurs : Mestel, A Jonathan (3x), Roeder, Matthias (3x), Doda, Zbigniew (2x), Portisch, Ferenc (2x), O'Kelly de Galway, Alberic (2x), Adad, Carlos (2x), Teschner, Rudolf (2x), Henley, Ron (2x)
9…exd4 — 26.7% (87 parties)
Ambassadeurs : Knaak, Rainer (2x), Taylor, Gordon (2x), Harper, Bruce (2x), Taimanov, Mark (2x), Romanishin, Oleg M (2x), Florian, Tibor (1x), Koberl, Ferenc (1x), Volpert, Larisa (1x)
9…Re8 — 19.3% (63 parties)
Ambassadeurs : Barden, Leonard (2x), Gligorić, Svetozar (2x), Bielczyk, Jacek (2x), Dueball, Juergen (2x), Carballo Madrigal, Fabian (1x), Rubinetti, Jorge (1x), Benko, Pal (1x), Reshevsky, Samuel (1x)
9…a6 — 4.3% (14 parties)
Ambassadeurs : Gligoric, Svetozar (3x), Hort, Vlastimil (2x), Ivkov, Borislav (2x), Andersson, Ulf (1x), Kavalek, Lubomir (1x), Gligorić, Svetozar (1x), Cafferty, Bernard (1x), Rutherford, L. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…a5 9…exd4 9…Re8 9…a6
<1800 1 — 100% — —
1800-2200 64 28% 17% 27% 5%
2200-2600 173 38% 32% 14% 6%
2600+ 1 — 100% — —
Évolution par décennie (% des parties)
Décennie N parties 9…a5 9…exd4 9…Re8 9…a6
1950s 17 41% 18% 35% —
1960s 25 40% 24% 24% —
1970s 35 46% 20% 23% —
1980s 44 34% 39% 11% 11%
1990s 55 33% 31% 16% 5%
2000s 80 40% 22% 18% 4%
2010s 63 33% 25% 22% 5%
2020s 7 14% 43% 14% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…a5 33% 14% ▼ -19.0%
9…exd4 25% 43% ▲ +17.5%
9…Re8 22% 14% ▼ -7.9%
9…a6 5% 0% ▼ -4.8%
Parties historiques
9…a5 — 36.8% (120 parties)
1952 — Rabar, Bakhtyar Hamasaleh vs Pietzsch, Wolfgang — 1-0 — Helsinki FIN
1952 — Negyesy, Gyorgy vs Gereben, Erno — 1/2-1/2 — Budapest HUN
1954 — O'Kelly de Galway, Alberic vs Cuellar Gacharna, Miguel — 1-0 — Amsterdam NED
1954 — Jauregui, Carlos vs Najdorf, Miguel — 0-1 — Mar del Plata ARG
1954 — De Souza Mendes, Joao vs Bombardo Schroder, Liam — 1/2-1/2 — Mar del Plata ARG
9…exd4 — 26.7% (87 parties)
1952 — Florian, Tibor vs Koberl, Ferenc — 1-0 — Hungary ch
1954 — Kniazer, Igor vs Clarke, Peter H — 1/2-1/2 — Olympiad final A
1954 — Corral, Hector vs Boleslavsky, Isaac — 0-1 — Montevideo URU
1962 — Dmtr, J vs Schrancz, Istvan — 1/2-1/2 — E/12 National semi-f
1963 — De Greiff, B. vs Darga, Klaus — 0-1 — Havana CUB
9…Re8 — 19.3% (63 parties)
1952 — Barden, Leonard vs Wood, Baruch — 1/2-1/2 — Paignton
1952 — Barden, Leonard vs Oakley, Peter James — 1-0 — Paignton
1952 — Letelier Martner, Rene vs Reinhardt, Enrique — 0-1 — Mar del Plata ARG
1952 — Rabar, Braslav vs Gligorić, Svetozar — 0-1 — Belgrade SRB
1954 — Najdorf, Miguel vs Pilnik, Herman — 0-1 — Mar del Plata ARG
9…a6 — 4.3% (14 parties)
1980 — Andersson, Ulf vs Kavalek, Lubomir — 1-0 — Bugojno BIH
1980 — Gligoric, Svetozar vs Hort, Vlastimil — 1/2-1/2 — Bugojno BIH
1980 — Gligoric, Svetozar vs Hort, Vlastimil — 1/2-1/2 — Bugojno BIH
1987 — Gligorić, Svetozar vs Ivkov, Borislav — 1/2-1/2 — Yugoslavia
1987 — Gligoric, Svetozar vs Ivkov, Borislav — 1/2-1/2 — Yugoslavia